Funding for this research was provided by:
National Research Foundation of Korea (2017R1A2B3004972)
Korea Institute of Planning and Evaluation for Technology in Food, Agriculture, Forestry and Fisheries (No. 109023-05-5-CG000)
BK21 (BK21)
Article History
Received: 10 July 2017
Accepted: 9 January 2018
First Online: 30 January 2018
Ethics approval and consent to participate
: “Not applicable”
: “Not applicable”
: The authors declare that they have no competing interests.